How to suppress column headings in BTEQ

I would like to suppress the column heading and underscore output from the following BTEQ script. Please could you let me know how to do this, the manual seems to omit this option. I can get round it using the tail command in UNIX but it would look more professional if it could be done in BTEQ.

By the way I notice my file is written to incrementally every time I run the BTEQ script. Is there a command to overwrite the content on every run? Again I can work round this by deleting the file in the Unix script at the start of the run but it would look better to do this in one hit with the BTEQ script.